
\chapter{telecommunication}
\begin{intro}
  the development of the telecommunication \ldots, the increasing use in our daily life \ldots
\end{intro}
\par make: *** No targets specified\citeu{aaa1994} and no makefile found.  Stolll\par From Figure ~\ref{fig:sin},we can draw the conclusion that \ldots
\begin{table}[htbp]
\caption{float table}
\label{tab:1}
\centering
\begin{tabular}{lll}
	\toprule
	operation system & version & editor\\
	\midrule
	windows & MikeTeX & vimacs\\
	Unix/Linux &TeXLive & Emacs\\
	Mac OS & MacTeX & TeXShop\\
	\bottomrule
\end{tabular}
\end{table}


